/*
 Copyright (c) 2012, Smartrak, Jacob Toye
 Leaflet.draw is an open-source JavaScript library for drawing shapes/markers on leaflet powered maps.
 https://github.com/jacobtoye/Leaflet.draw
*/
(function(e,t){L.drawVersion="0.1.5",L.Util.extend(L.LineUtil,{segmentsIntersect:function(e,t,n,r){return this._checkCounterclockwise(e,n,r)!==this._checkCounterclockwise(t,n,r)&&this._checkCounterclockwise(e,t,n)!==this._checkCounterclockwise(e,t,r)},_checkCounterclockwise:function(e,t,n){return(n.y-e.y)*(t.x-e.x)>(t.y-e.y)*(n.x-e.x)}}),L.Polyline.include({intersects:function(){var e=this._originalPoints,t=e?e.length:0,n,r,i,s,o,u;if(this._tooFewPointsForIntersection())return!1;for(n=t-1;n>=3;n--){i=e[n-1],s=e[n];if(this._lineSegmentsIntersectsRange(i,s,n-2))return!0}return!1},newLatLngIntersects:function(e,t){return this._map?this.newPointIntersects(this._map.latLngToLayerPoint(e),t):!1},newPointIntersects:function(e,t){var n=this._originalPoints,r=n?n.length:0,i=n?n[r-1]:null,s=r-2;return this._tooFewPointsForIntersection(1)?!1:this._lineSegmentsIntersectsRange(i,e,s,t?1:0)},_tooFewPointsForIntersection:function(e){var t=this._originalPoints,n=t?t.length:0;return n+=e||0,!this._originalPoints||n<=3},_lineSegmentsIntersectsRange:function(e,t,n,r){var i=this._originalPoints,s,o;r=r||0;for(var u=n;u>r;u--){s=i[u-1],o=i[u];if(L.LineUtil.segmentsIntersect(e,t,s,o))return!0}return!1}}),L.Polygon.include({intersects:function(){var e,t=this._originalPoints,n,r,i,s;return this._tooFewPointsForIntersection()?!1:(e=L.Polyline.prototype.intersects.call(this),e?!0:(n=t.length,r=t[0],i=t[n-1],s=n-2,this._lineSegmentsIntersectsRange(i,r,s,1)))}}),L.Handler.Draw=L.Handler.extend({includes:L.Mixin.Events,initialize:function(e,t){this._map=e,this._container=e._container,this._overlayPane=e._panes.overlayPane,this._popupPane=e._panes.popupPane,t&&t.shapeOptions&&(t.shapeOptions=L.Util.extend({},this.options.shapeOptions,t.shapeOptions)),L.Util.extend(this.options,t)},enable:function(){this.fire("activated"),this._map.fire("drawing",{drawingType:this.type}),L.Handler.prototype.enable.call(this)},disable:function(){this._map.fire("drawing-disabled",{drawingType:this.type}),L.Handler.prototype.disable.call(this)},addHooks:function(){this._map&&(L.DomUtil.disableTextSelection(),this._label=L.DomUtil.create("div","leaflet-draw-label",this._popupPane),this._singleLineLabel=!1,L.DomEvent.addListener(this._container,"keyup",this._cancelDrawing,this))},removeHooks:function(){this._map&&(L.DomUtil.enableTextSelection(),this._popupPane.removeChild(this._label),delete this._label,L.DomEvent.removeListener(this._container,"keyup",this._cancelDrawing))},_updateLabelText:function(e){e.subtext=e.subtext||"",e.subtext.length===0&&!this._singleLineLabel?(L.DomUtil.addClass(this._label,"leaflet-draw-label-single"),this._singleLineLabel=!0):e.subtext.length>0&&this._singleLineLabel&&(L.DomUtil.removeClass(this._label,"leaflet-draw-label-single"),this._singleLineLabel=!1),this._label.innerHTML=(e.subtext.length>0?'<span class="leaflet-draw-label-subtext">'+e.subtext+"</span>"+"<br />":"")+"<span>"+e.text+"</span>"},_updateLabelPosition:function(e){L.DomUtil.setPosition(this._label,e)},_cancelDrawing:function(e){e.keyCode===27&&this.disable()}}),L.Polyline.Draw=L.Handler.Draw.extend({Poly:L.Polyline,type:"polyline",options:{allowIntersection:!0,drawError:{color:"#b00b00",message:"<strong>Error:</strong> shape edges cannot cross!",timeout:2500},icon:new L.DivIcon({iconSize:new L.Point(8,8),className:"leaflet-div-icon leaflet-editing-icon"}),guidelineDistance:20,shapeOptions:{stroke:!0,color:"#f06eaa",weight:4,opacity:.5,fill:!1,clickable:!0},zIndexOffset:2e3},initialize:function(e,t){t&&t.drawError&&(t.drawError=L.Util.extend({},this.options.drawError,t.drawError)),L.Handler.Draw.prototype.initialize.call(this,e,t)},addHooks:function(){L.Handler.Draw.prototype.addHooks.call(this),this._map&&(this._markers=[],this._markerGroup=new L.LayerGroup,this._map.addLayer(this._markerGroup),this._poly=new L.Polyline([],this.options.shapeOptions),this._updateLabelText(this._getLabelText()),this._mouseMarker||(this._mouseMarker=L.marker(this._map.getCenter(),{icon:L.divIcon({className:"leaflet-mouse-marker",iconAnchor:[20,20],iconSize:[40,40]}),opacity:0,zIndexOffset:this.options.zIndexOffset})),this._mouseMarker.on("click",this._onClick,this).addTo(this._map),this._map.on("mousemove",this._onMouseMove,this))},removeHooks:function(){L.Handler.Draw.prototype.removeHooks.call(this),this._clearHideErrorTimeout(),this._cleanUpShape(),this._map.removeLayer(this._markerGroup),delete this._markerGroup,delete this._markers,this._map.removeLayer(this._poly),delete this._poly,this._mouseMarker.off("click",this._onClick),this._map.removeLayer(this._mouseMarker),delete this._mouseMarker,this._clearGuides(),this._map.off("mousemove",this._onMouseMove)},_finishShape:function(){if(!this.options.allowIntersection&&this._poly.newLatLngIntersects(this._poly.getLatLngs()[0],!0)){this._showErrorLabel();return}if(!this._shapeIsValid()){this._showErrorLabel();return}this._map.fire("draw:poly-created",{poly:new this.Poly(this._poly.getLatLngs(),this.options.shapeOptions)}),this.disable()},_shapeIsValid:function(){return!0},_onMouseMove:function(e){var t=e.layerPoint,n=e.latlng,r=this._markers.length;this._currentLatLng=n,this._updateLabelPosition(t),r>0&&(this._updateLabelText(this._getLabelText()),this._clearGuides(),this._drawGuide(this._map.latLngToLayerPoint(this._markers[r-1].getLatLng()),t)),this._mouseMarker.setLatLng(n),L.DomEvent.preventDefault(e.originalEvent)},_onClick:function(e){var t=e.target.getLatLng(),n=this._markers.length;if(n>0&&!this.options.allowIntersection&&this._poly.newLatLngIntersects(t)){this._showErrorLabel();return}this._errorShown&&this._hideErrorLabel(),this._markers.push(this._createMarker(t)),this._poly.addLatLng(t),this._poly.getLatLngs().length===2&&this._map.addLayer(this._poly),this._updateMarkerHandler(),this._vertexAdded(t)},_updateMarkerHandler:function(){this._markers.length>1&&this._markers[this._markers.length-1].on("click",this._finishShape,this),this._markers.length>2&&this._markers[this._markers.length-2].off("click",this._finishShape)},_createMarker:function(e){var t=new L.Marker(e,{icon:this.options.icon,zIndexOffset:this.options.zIndexOffset*2});return this._markerGroup.addLayer(t),t},_drawGuide:function(e,t){var n=Math.floor(Math.sqrt(Math.pow(t.x-e.x,2)+Math.pow(t.y-e.y,2))),r,i,s,o;this._guidesContainer||(this._guidesContainer=L.DomUtil.create("div","leaflet-draw-guides",this._overlayPane));for(r=this.options.guidelineDistance;r<n;r+=this.options.guidelineDistance)i=r/n,s={x:Math.floor(e.x*(1-i)+i*t.x),y:Math.floor(e.y*(1-i)+i*t.y)},o=L.DomUtil.create("div","leaflet-draw-guide-dash",this._guidesContainer),o.style.backgroundColor=this._errorShown?this.options.drawError.color:this.options.shapeOptions.color,L.DomUtil.setPosition(o,s)},_updateGuideColor:function(e){if(this._guidesContainer)for(var t=0,n=this._guidesContainer.childNodes.length;t<n;t++)this._guidesContainer.childNodes[t].style.backgroundColor=e},_clearGuides:function(){if(this._guidesContainer)while(this._guidesContainer.firstChild)this._guidesContainer.removeChild(this._guidesContainer.firstChild)},_updateLabelText:function(e){this._errorShown||L.Handler.Draw.prototype._updateLabelText.call(this,e)},_getLabelText:function(){var e,t,n;return this._markers.length===0?e={text:"Click to start drawing line."}:(t=this._measurementRunningTotal+this._currentLatLng.distanceTo(this._markers[this._markers.length-1].getLatLng()),n=t>1e3?(t/1e3).toFixed(2)+" km":Math.ceil(t)+" m",this._markers.length===1?e={text:"Click to continue drawing line.",subtext:n}:e={text:"Click last point to finish line.",subtext:n}),e},_showErrorLabel:function(){this._errorShown=!0,L.DomUtil.addClass(this._label,"leaflet-error-draw-label"),L.DomUtil.addClass(this._label,"leaflet-flash-anim"),L.Handler.Draw.prototype._updateLabelText.call(this,{text:this.options.drawError.message}),this._updateGuideColor(this.options.drawError.color),this._poly.setStyle({color:this.options.drawError.color}),this._clearHideErrorTimeout(),this._hideErrorTimeout=setTimeout(L.Util.bind(this._hideErrorLabel,this),this.options.drawError.timeout)},_hideErrorLabel:function(){this._errorShown=!1,this._clearHideErrorTimeout(),L.DomUtil.removeClass(this._label,"leaflet-error-draw-label"),L.DomUtil.removeClass(this._label,"leaflet-flash-anim"),this._updateLabelText(this._getLabelText()),this._updateGuideColor(this.options.shapeOptions.color),this._poly.setStyle({color:this.options.shapeOptions.color})},_clearHideErrorTimeout:function(){this._hideErrorTimeout&&(clearTimeout(this._hideErrorTimeout),this._hideErrorTimeout=null)},_vertexAdded:function(e){this._markers.length===1?this._measurementRunningTotal=0:this._measurementRunningTotal+=e.distanceTo(this._markers[this._markers.length-2].getLatLng())},_cleanUpShape:function(){this._markers.length>0&&this._markers[this._markers.length-1].off("click",this._finishShape)}}),L.Polygon.Draw=L.Polyline.Draw.extend({Poly:L.Polygon,type:"polygon",options:{shapeOptions:{stroke:!0,color:"#f06eaa",weight:4,opacity:.5,fill:!0,fillColor:null,fillOpacity:.2,clickable:!1}},_updateMarkerHandler:function(){this._markers.length===1&&this._markers[0].on("click",this._finishShape,this)},_getLabelText:function(){var e;return this._markers.length===0?e="Click to start drawing shape.":this._markers.length<3?e="Click to continue drawing shape.":e="Click first point to close this shape.",{text:e}},_shapeIsValid:function(){return this._markers.length>=3},_vertexAdded:function(e){},_cleanUpShape:function(){this._markers.length>0&&this._markers[0].off("click",this._finishShape)}}),L.SimpleShape={},L.SimpleShape.Draw=L.Handler.Draw.extend({addHooks:function(){L.Handler.Draw.prototype.addHooks.call(this),this._map&&(this._map.dragging.disable(),this._container.style.cursor="crosshair",this._updateLabelText({text:this._initialLabelText}),this._map.on("mousedown",this._onMouseDown,this).on("mousemove",this._onMouseMove,this))},removeHooks:function(){L.Handler.Draw.prototype.removeHooks.call(this),this._map&&(this._map.dragging.enable(),this._container.style.cursor="",this._map.off("mousedown",this._onMouseDown,this).off("mousemove",this._onMouseMove,this),L.DomEvent.off(document,"mouseup",this._onMouseUp),this._shape&&(this._map.removeLayer(this._shape),delete this._shape)),this._isDrawing=!1},_onMouseDown:function(e){this._isDrawing=!0,this._startLatLng=e.latlng,L.DomEvent.on(document,"mouseup",this._onMouseUp,this).preventDefault(e.originalEvent)},_onMouseMove:function(e){var t=e.layerPoint,n=e.latlng;this._updateLabelPosition(t),this._isDrawing&&(this._updateLabelText({text:"Release mouse to finish drawing."}),this._drawShape(n))},_onMouseUp:function(e){this._shape&&this._fireCreatedEvent(),this.disable()}}),L.Circle.Draw=L.SimpleShape.Draw.extend({type:"circle",options:{shapeOptions:{stroke:!0,color:"#f06eaa",weight:4,opacity:.5,fill:!0,fillColor:null,fillOpacity:.2,clickable:!0}},_initialLabelText:"Click and drag to draw circle.",_drawShape:function(e){this._shape?this._shape.setRadius(this._startLatLng.distanceTo(e)):(this._shape=new L.Circle(this._startLatLng,this._startLatLng.distanceTo(e),this.options.shapeOptions),this._map.addLayer(this._shape))},_fireCreatedEvent:function(){this._map.fire("draw:circle-created",{circ:new L.Circle(this._startLatLng,this._shape.getRadius(),this.options.shapeOptions)})}}),L.Rectangle.Draw=L.SimpleShape.Draw.extend({type:"rectangle",options:{shapeOptions:{stroke:!0,color:"#f06eaa",weight:4,opacity:.5,fill:!0,fillColor:null,fillOpacity:.2,clickable:!0}},_initialLabelText:"Click and drag to draw rectangle.",_drawShape:function(e){this._shape?this._shape.setBounds(new L.LatLngBounds(this._startLatLng,e)):(this._shape=new L.Rectangle(new L.LatLngBounds(this._startLatLng,e),this.options.shapeOptions),this._map.addLayer(this._shape))},_fireCreatedEvent:function(){this._map.fire("draw:rectangle-created",{rect:new L.Rectangle(this._shape.getBounds(),this.options.shapeOptions)})}}),L.Marker.Draw=L.Handler.Draw.extend({type:"marker",options:{icon:new L.Icon.Default,zIndexOffset:2e3},addHooks:function(){L.Handler.Draw.prototype.addHooks.call(this),this._map&&(this._updateLabelText({text:"Click map to place marker."}),this._map.on("mousemove",this._onMouseMove,this))},removeHooks:function(){L.Handler.Draw.prototype.removeHooks.call(this),this._map&&(this._marker&&(this._marker.off("click",this._onClick),this._map.off("click",this._onClick).removeLayer(this._marker),delete this._marker),this._map.off("mousemove",this._onMouseMove))},_onMouseMove:function(e){var t=e.layerPoint,n=e.latlng;this._updateLabelPosition(t),this._marker?this._marker.setLatLng(n):(this._marker=new L.Marker(n,{icon:this.options.icon,zIndexOffset:this.options.zIndexOffset}),this._marker.on("click",this._onClick,this),this._map.on("click",this._onClick,this).addLayer(this._marker))},_onClick:function(e){this._map.fire("draw:marker-created",{marker:new L.Marker(this._marker.getLatLng(),{icon:this.options.icon})}),this.disable()}}),L.Map.mergeOptions({drawControl:!1}),L.Control.Draw=L.Control.extend({options:{position:"topleft",polyline:{title:"Draw a polyline"},polygon:{title:"Draw a polygon"},rectangle:{title:"Draw a rectangle"},circle:{title:"Draw a circle"},marker:{title:"Add a marker"}},initialize:function(e){L.Util.extend(this.options,e)},onAdd:function(e){var t="leaflet-control-draw",n=L.DomUtil.create("div",t);return this.handlers={},this.options.polyline&&(this.handlers.polyline=new L.Polyline.Draw(e,this.options.polyline),this._createButton(this.options.polyline.title,t+"-polyline",n,this.handlers.polyline.enable,this.handlers.polyline),this.handlers.polyline.on("activated",this._disableInactiveModes,this)),this.options.polygon&&(this.handlers.polygon=new L.Polygon.Draw(e,this.options.polygon),this._createButton(this.options.polygon.title,t+"-polygon",n,this.handlers.polygon.enable,this.handlers.polygon),this.handlers.polygon.on("activated",this._disableInactiveModes,this)),this.options.rectangle&&(this.handlers.rectangle=new L.Rectangle.Draw(e,this.options.rectangle),this._createButton(this.options.rectangle.title,t+"-rectangle",n,this.handlers.rectangle.enable,this.handlers.rectangle),this.handlers.rectangle.on("activated",this._disableInactiveModes,this)),this.options.circle&&(this.handlers.circle=new L.Circle.Draw(e,this.options.circle),this._createButton(this.options.circle.title,t+"-circle",n,this.handlers.circle.enable,this.handlers.circle),this.handlers.circle.on("activated",this._disableInactiveModes,this)),this.options.marker&&(this.handlers.marker=new L.Marker.Draw(e,this.options.marker),this._createButton(this.options.marker.title,t+"-marker",n,this.handlers.marker.enable,this.handlers.marker),this.handlers.marker.on("activated",this._disableInactiveModes,this)),n},_createButton:function(e,t,n,r,i){var s=L.DomUtil.create("a",t,n);return s.href="#",s.title=e,L.DomEvent.on(s,"click",L.DomEvent.stopPropagation).on(s,"mousedown",L.DomEvent.stopPropagation).on(s,"dblclick",L.DomEvent.stopPropagation).on(s,"click",L.DomEvent.preventDefault).on(s,"click",r,i),s},_disableInactiveModes:function(){for(var e in this.handlers)this.handlers.hasOwnProperty(e)&&this.handlers[e].enabled()&&this.handlers[e].disable()}}),L.Map.addInitHook(function(){this.options.drawControl&&(this.drawControl=new L.Control.Draw,this.addControl(this.drawControl))})})(this);